Seiko Cal. 5657 - 235

Seiko 5657-235

This Automatic model from 1976 features a 42mm Stainless Steel case. With its 18mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-ba8c4b6fa01c]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
15.0mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
160m
Dial Color
White
Jewels
29j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1976

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